| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| September 1962 |
|
Space Prison | Pyramid Books | Novel | |
| September 2007 | Space Prison | Project Gutenberg | Novel | ||
| December 2007 |
|
Space Prison | Book Jungle | Novel | |
| December 2009 |
|
Space Prison | LibriVox | Novel | |
| December 2010 |
|
Space Prison | Benediction Classics | Novel | |
| July 2016 |
|
Space Prison | Pickle Partners Publishing | Novel |